EP1419966A1 - Method and apparatus for applying a packaging hood of stretch foil on a palettized load - Google Patents
Method and apparatus for applying a packaging hood of stretch foil on a palettized load Download PDFInfo
- Publication number
- EP1419966A1 EP1419966A1 EP03354082A EP03354082A EP1419966A1 EP 1419966 A1 EP1419966 A1 EP 1419966A1 EP 03354082 A EP03354082 A EP 03354082A EP 03354082 A EP03354082 A EP 03354082A EP 1419966 A1 EP1419966 A1 EP 1419966A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fingers
- load
- finger
- cover
- pleating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004806 packaging method and process Methods 0.000 title claims description 10
- 239000011888 foil Substances 0.000 title 1
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 6
- 229920006302 stretch film Polymers 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000009459 flexible packaging Methods 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 235000021183 entrée Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920006300 shrink film Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
- B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
- B65B9/135—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state for palletised loads
Definitions
- the use of a stretch film sheath is well known for ensuring the stability and tightness of a palletized load. Contrary to shrink film, the installation of a stretchy sheath does not no heat source required, as it suffices to stretch mechanically beforehand the plastic film material in the direction transverse horizontal before wrapping the palletized load at wrap. After removing the stretched sheath on the load, the tightening of the stretch film material occurs naturally by elasticity, which firmly holds the sheath around the charge.
- the sheath can be made of polyethylene, or any other material stretchable plastic.
- the sheath is generally stored by winding on a reel, and folded over its section with four bellows. After unwinding of the reel, the opening of the sheath is effected by an action mechanical separation at the four angles.
- Packing machines for threading a film cover stretchable on the load have a device for this purpose spacer to open the stretch film sheath, and a device for pleating to pleat the accordion sheath on four integral fingers of a support frame.
- a welding device is arranged between the spacer and the pleating device for weld the sheath by forming a welded joint.
- the sheath is then cut transversely by a cutting device to make a cover independent of the coil, and closed at its part higher.
- the pleated cover is then stretched in a plane horizontal parallel to the weld, and is positioned above of the palletized load.
- the cover is unfolded during the hooding, and deposited on and around the load following a vertical displacement of top to bottom of the frame.
- the cover undergoes in the transverse stretched state, a longitudinal stretching in the vertical direction from 5% to 15% of its initial vertical length.
- the mechanism of the COVERPAL packaging machine (registered trademark from the company Thimon), is described in detail in the document EP 1060988. Welding and sheath cutting operations for form the cover, are carried out before removal on the fingers of pleating, unlike the mechanism described previously in the document EP 344815. The weld is then perfectly cooled when it is stressed by transverse stretching, and is more resistant to elongation stresses. There are no specific means planned to perform a vertical lengthening of the sheath during the covering following the transverse stretching phase.
- each finger 12 has a drawing shoe 22 having a curved shape advantageously adapted to the friction of the film during the pleating and unfolding stages.
- the vertical side of the finger 12 can be fitted with one or two crazy rollers 13, or be fitted with a fixed friction coating with low friction, so as to pinch the sheath and drag it down during pleating by the motorized roller 14.
- the latter is rotated by a geared motor 24, and cooperates with tilting with an actuator 20 between a spread apart position (not shown), and a position working ( Figures 1 to 3) in contact with finger 12.
- the four motorized rollers 14 are rotated in the direction of arrows F1 and F2 to ensure the pleating of the cover 10 in accumulating it in an accordion in the lower part 12A of the fingers 12.
- the top of cover 10 has been previously closed by a welded joint 16.
- the horizontal stretching of the cover in the direction of the arrows F3 and F4 is shown in FIG. 3.
- the motorized rollers 14 no longer rotate, and can be kept pressed against the pleating fingers 12 of so as to tighten more or less strongly the horizontal part upper cover 10 during transverse stretching. It is also possible to control the actuators 20 to spread the rollers 14 motorized during this stretching step in order to allow the film to partially slide on the fingers 12, avoiding any possibility of tearing the film.
- Such known mechanisms allow to obtain a transverse stretching rate higher than 10%.
- the quality of the stretch sheaths makes it possible to obtain stretching from 50% to 100%.
- the next phase of hooding is carried out by a vertical displacement of the frame over the load, so as to cause the unfolding progressive of the cover on the load.
- the tightening of the stretch film material occurs naturally by elasticity, which ensures the stable maintenance of the load.
- the relaxation of the material and the friction of the film on the fingers create in addition a vertical tension of the film on the load which contributes also to enhance stability.
- This vertical tension is generated without any particular vertical stretching device, given that a transverse stretch from 50% to 100% reduces the sheath height, and transmits to the load cohesive forces sufficient to ensure stability, since this vertical tension is maintained during deposit it on the load.
- the angle of inclination A of the fingers 12 with the vertical direction allows to facilitate the accumulation of folds during pleating by the rollers 14 motorized.
- the clearance between the cover 10 and fingers 12 gradually increases as we approaches the lower part, with the consequence of a possibility of disorganization of the folds, which are no longer correctly guided when they slide towards the base of the fingers.
- a lower angle of inclination A of the fingers 12 would have as main drawback of hampering the effect of fold accumulation, being since the film sliding down could no longer take place naturally.
- the motorized rollers 14, in addition to their pleating function, must also exercise a second function pushing down, which causes friction on the folds higher, with risks of dots or lines forming vertical fragility of the sheath before the transverse stretching phase.
- the stretch film is temporarily laterally clamped in the lower area of the load or pallet, against a stop which is placed above the fingers.
- the object of the invention is to develop a method of drawing a packaging cover allowing free accumulation and regular without disorganization of the folds during the pleating phase before transverse stretching, and to avoid any risk of tearing the film during the next covering step.
- a development of the invention consists in creating a regular and precise pleated strand during the covering step, and in depositing it on the load at any height, or on the pallet.
- Another development of the invention relates to a stretching process making it possible to obtain a controlled tension of the film during the hooding.
- the drawing process according to the invention is characterized in that the inclination of the fingers is between 0 and 25 ° relative to the vertical direction, and we limit the reduction of the pleating perimeter around the fingers to obtain before the transverse stretching phase horizontal, an accumulation without discomfort and a regular distribution folds in the lower part of said fingers.
- the friction of the sheath which descends along the inclined fingers is effected on both finger edges. Any angle or protruding part on these edges may disrupt the folds.
- Disorganization of the folds after the stretching step may indeed disturb the unfolding during hooding, creating pinching of the folds between them which may cause the sheath to tear.
- a regular pleated strand can be created in the film during the covering phase, by interrupting the lowering movement of the cover to a predetermined level, and by rotating the rollers in a second direction of rotation. opposite the first.
- the stranded film can be precisely deposited at any level of height of the palletized load. It is thus possible to create either a mini cover at any level of the load or the pallet, or the sealing and the maintenance of the upper part of the load, or the removal of the strand on the top of the support pallet allowing precise clearance from the entrance to an automatic palletizer fork.
- the lower portion of the cover part deposited against the drawing shoe is blocked, which is located at the upper part of the fingers. This results in controlled mechanical tension in the film, with the possibility of vertical stretching of the cover, the value of which is between 5% to 50% of vertical elongation.
- the formation of the strand according to these developments is only possible if beforehand, the organization of the folds is perfect.
- the invention also relates to a device for packaging a load.
- a device for packaging a load palletized using a cover made of plastic film stretchable, and comprising an operating frame equipped with pleating and stretching, each finger having a stretching shoe, and being associated with a motorized roller driven in rotation by a gear motor, means for tilting each motorized roller between a spread position of rest, and a working position in contact with the finger, and means for actuating the frame to cover the load.
- the inclined lower part of each finger is endowed with means avoiding too much reduction large pleating perimeter around the fingers, and comprising a braking element arranged in the low zone of accumulation of folds where the play between the pleated cover before the stretching phase transverse is the most important.
- the braking element is straight, and extends vertically projecting from the area center of the inclined lower part of the finger.
- the braking element has a width less than that of the finger, and is secured by its base to the movable support of the finger.
- the opposite end of the element braking system is arranged under a roller on which the motorized roller during pleating.
- a clamping element is mounted on the support of each finger extending substantially at the level of the drawing shoe above the corresponding motorized roller.
- the element clamp is associated with an actuator to be moved between a blocking position in abutment against the shoe, and a position of unlocking discarded from said shoe.
- the clamping element can be formed by a flexible end stop intended to wedge part of the cover against said shoe in the locked position.
- each finger 12 is provided with a rectilinear braking element 26, extending vertically projecting from the central area, and having a width L1 less than that L2 of finger 12.
- the base of the braking element 26 is secured to the movable support 28 of the finger 12, and its opposite end is located below the roller 13 lower without touching it.
- the value of angle A can be understood between 0 and 25 °.
- the braking element 26 constitutes a compensation means arranged in the low accumulation zone where the play between the pleated cover 10 and the inclined lower part 12A of the finger 12 is the most important.
- the presence of the braking elements 26 on the four fingers 1 2 inclined limits the reduction of perimeter around the fingers 12, in allowing both an unobtrusive accumulation of folds in the lower part 12A, and a uniform and regular distribution of the pleats along the neighboring vertical edges A1 and A2.
- Transverse stretching cover 10 can then be operated as in figure 3 (arrows F3 and F4), by spacing the supports 28 in a horizontal plane at the four corners of the frame, and avoiding any creases irregular or pinched risk of tearing during the hooding.
- a clamping element 30 is mounted on the support 28 of each finger 12, extending substantially at the level of the shoe drawing 22 above the motorized roller 14. Clamping element 30 is coupled to an actuator 32 so as to be moved between a locking position and an unlocking position.
- the clamping element 30 is formed by way of example by a stopper with a flexible end piece rubber, coming to bear in blocking position against the shoe drawing 22 to pinch the lower part of the cover 10 aux four corners.
- the actuator 32 can be constituted by a control cylinder pneumatic, hydraulic or electric.
- the 24 geared motors four 14 rotating rollers are controlled by variable speed drives adjustable according to various parameters, and the direction of rotation can be reversed during the pleating and hooding.
- the stranded film of the cover 10 can then be deposited on the palletized CH load following a double displacement of the four fingers 12 according to the arrows F6 and F7. From the figure 7A corresponding to the formation of the strand 34 according to FIG. 6, spread fingers 12 in a first translational movement indicated by arrow F6 ( Figure 7B), followed by a second movement orthogonal vertical clearance (arrow F7, figure 7C) for the application of the strand 34 on the load CH.
- clamping elements 30 also makes it more reliable the previous function, thanks to the wedging of the cover 10 in actuator locking position 32. A mechanical tension effect is thus generated in the upper vertical part of the sheath deposited while keeping the film stretched.
- FIG. 8 shows the step of covering the load CH, following the transverse stretching phase of figure 3.
- the clamping element 30 is in a separated position, as is the roller 14 of pleating.
- the film of the cover 10 slides freely along the shoe 22 curved, and the unfolding of the folds is carried out gradually and without discomfort during the downhill race indicated by arrow F8.
- the fingers 12 are brought together horizontally for the removing the strand 34 at a specific location of the CH load or of the pallet 36, followed by a movement to release the support 28 from the fingers 12 down according to arrow F7.
- the clamping element 30 is then actuated towards the unlocking position to release the strand 34 during its removal.
- the vertical part of the cover 10 remains taut when the pleated strand 34 is formed, and can even be stretched with a value of up to 5% to 50% of vertical elongation.
- the clamping element 30 is deleted, and the end of the drawing shoe 22 is protruding enough to hold the strand at the top of the finger. This strand is then deposited on the load according to the same cycle described above.
- the invention also applies to a flat sheath, opened by depression effect, and taken at four points by the frame of hooding.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
Abstract
Description
L'invention est relative à un procédé de mise en place sur une charge palettisée d'une housse souple d'emballage obtenue à partir d'une gaine en matière plastique étirable, consistant à :
- ouvrir la gaine pour la mise en volume au-dessus de la charge,
- plisser les parties latérales de la gaine en accordéon sur des doigts de plissage, en faisant intervenir des galets motorisés tournant dans un premier sens de rotation,
- étirer ensuite la gaine plissée dans la direction transversale horizontale pour obtenir une ouverture plus grande que le périmètre de la charge à emballer,
- et déplacer la gaine étirée par-dessus la charge selon une direction verticale en provoquant le déplissage progressif des plis lors de la course de houssage.
- open the sheath for volume setting above the load,
- pleating the lateral parts of the accordion sheath on pleating fingers, using motorized rollers rotating in a first direction of rotation,
- then stretch the pleated sheath in the horizontal transverse direction to obtain an opening larger than the perimeter of the load to be packed,
- and moving the stretched sheath over the load in a vertical direction, causing the gradual unfolding of the plies during the covering stroke.
L'utilisation d'une gaine de film étirable est bien connue pour assurer la stabilité et l'étanchéité d'une charge palettisée. Contrairement au film thermorétractable, la mise en place d'une gaine étirable ne nécessite pas de source de chaleur, car il suffit d'étirer mécaniquement au préalable la matière du film plastique dans le sens transversal horizontal avant d'envelopper la charge palettisée à emballer. Après la dépose de la gaine étirée sur la charge, le resserrement de la matière du film étirable s'effectue naturellement par élasticité, ce qui maintient fermement la gaine autour de la charge. La gaine peut être en polyéthylène, ou en toute autre matière plastique étirable.The use of a stretch film sheath is well known for ensuring the stability and tightness of a palletized load. Contrary to shrink film, the installation of a stretchy sheath does not no heat source required, as it suffices to stretch mechanically beforehand the plastic film material in the direction transverse horizontal before wrapping the palletized load at wrap. After removing the stretched sheath on the load, the tightening of the stretch film material occurs naturally by elasticity, which firmly holds the sheath around the charge. The sheath can be made of polyethylene, or any other material stretchable plastic.
La gaine est généralement stockée par enroulement selon une bobine, et repliée sur sa section en présentant quatre soufflets. Après dévidage de la bobine, l'ouverture de la gaine s'opère par une action mécanique d'écartement aux quatre angles.The sheath is generally stored by winding on a reel, and folded over its section with four bellows. After unwinding of the reel, the opening of the sheath is effected by an action mechanical separation at the four angles.
Les machines d'emballage destinées à enfiler une housse de film étirable sur la charge, possèdent à cet effet un dispositif d'écartement pour ouvrir la gaine de film étirable, et un dispositif de plissage pour plisser la gaine en accordéon sur quatre doigts solidaires d'un cadre support.Packing machines for threading a film cover stretchable on the load, have a device for this purpose spacer to open the stretch film sheath, and a device for pleating to pleat the accordion sheath on four integral fingers of a support frame.
Selon le document EP 344815, un dispositif de soudage est agencé entre le dispositif d'écartement et le dispositif de plissage pour souder la gaine en formant un joint soudé. Après soudage, la gaine est ensuite coupée transversalement par un dispositif de coupe pour réaliser une housse indépendante de la bobine, et fermée à sa partie supérieure. La housse plissée est ensuite étirée dans un plan horizontal parallèle à la soudure, et se trouve positionnée au-dessus de la charge palettisée. La housse est déplissée lors du houssage, et déposée sur et autour de la charge suite à un déplacement vertical de haut en bas du cadre. Avant d'être tirée par-dessus la charge, la housse subit à l'état étiré transversal, un étirage longitudinal dans la direction verticale de 5% à 15% de sa longueur verticale initiale.According to document EP 344815, a welding device is arranged between the spacer and the pleating device for weld the sheath by forming a welded joint. After welding, the sheath is then cut transversely by a cutting device to make a cover independent of the coil, and closed at its part higher. The pleated cover is then stretched in a plane horizontal parallel to the weld, and is positioned above of the palletized load. The cover is unfolded during the hooding, and deposited on and around the load following a vertical displacement of top to bottom of the frame. Before being pulled over the load, the cover undergoes in the transverse stretched state, a longitudinal stretching in the vertical direction from 5% to 15% of its initial vertical length.
Le mécanisme de la machine d'emballage COVERPAL (marque déposée de la société Thimon), est décrit en détail dans le document EP 1060988. Les opérations de soudure et de coupe de la gaine pour former la housse, sont effectuées avant la dépose sur les doigts de plissage, contrairement au mécanisme décrit précédemment dans le document EP 344815. La soudure est alors parfaitement refroidie lorsqu'elle est sollicitée par l'étirage transversal, et résiste mieux aux contraintes d'allongement. Il n'y a pas de moyens spécifiques prévus pour effectuer un allongement vertical de la gaine lors de la phase de houssage qui suit la phase d'étirage transversal.The mechanism of the COVERPAL packaging machine (registered trademark from the company Thimon), is described in detail in the document EP 1060988. Welding and sheath cutting operations for form the cover, are carried out before removal on the fingers of pleating, unlike the mechanism described previously in the document EP 344815. The weld is then perfectly cooled when it is stressed by transverse stretching, and is more resistant to elongation stresses. There are no specific means planned to perform a vertical lengthening of the sheath during the covering following the transverse stretching phase.
Sur les figures 1 à 3 représentant les phases de plissage et d'étirage
transversal d'une machine d'emballage de l'art antérieur, la partie
supérieure 12B de chaque doigt 12 est dotée d'un sabot d'étirage 22
ayant une forme cintrée avantageusement adaptée au frottement du
film lors des étapes de plissage et de déplissage. Le flanc vertical du
doigt 12 peut être équipé d'un ou de deux rouleaux 13 fous, ou être
équipé d'un revêtement fixe de glissement à faible frottement, de
manière à pincer la gainé et à l'entraíner vers le bas lors du plissage
par le galet motorisé 14. Ce dernier est entraíné en rotation par un
motoréducteur 24, et coopère à basculement avec un actionneur 20
entre une position écartée de repos (non représentée), et une position
de travail (figures 1 à 3) en contact avec le doigt 12.In Figures 1 to 3 showing the pleating and stretching phases
transverse of a packaging machine of the prior art, the part
upper 12B of each
Les quatre galets 14 motorisés sont entraínés en rotation dans les
sens des flèches F1 et F2 pour assurer le plissage de la housse 10 en
l'accumulant en accordéon dans la partie basse 12A des doigts 12. Le
dessus de la housse 10 a été fermé préalablement par un joint soudé
16.The four motorized
L'étirage horizontal de la housse dans le sens des flèches F3 et F4 est
représenté à la figure 3. Les galets 14 motorisés ne tournent plus, et
peuvent être maintenus en appui contre les doigts de plissage 12 de
manière à tendre plus ou moins fortement la partie horizontale
supérieure de la housse 10 durant l'étirage transversal. Il est
également possible de commander les actionneurs 20 pour écarter les
galets 14 motorisés pendant cette étape d'étirage afin de permettre
au film de glisser partiellement sur les doigts 12 en évitant toute
possibilité de déchirure du film. De tels mécanismes connus
permettent d'obtenir un taux d'étirage transversal supérieur à 10%.
La qualité des gaines étirables permet d'obtenir en effet des étirages
transversaux de 50% à 100%. The horizontal stretching of the cover in the direction of the arrows F3 and F4 is
shown in FIG. 3. The motorized
La phase suivante de houssage s'effectue par un déplacement vertical du cadre par-dessus la charge, de manière à provoquer le déplissage progressif de la housse sur la charge. Après la dépose de la housse, le resserrement de la matière du film étirable s'effectue naturellement par élasticité, ce qui assure le maintien stable de la charge. La relaxation de la matière et le frottement du film sur les doigts créent en plus une tension verticale du film sur la charge qui contribue également à renforcer la stabilité. Cette tension verticale est engendrée sans dispositif particulier d'étirage vertical, étant donné qu'un étirage transversal de 50% à 100% réduit la hauteur de gaine, et transmet à la charge des forces de cohésion suffisantes pour assurer la stabilité, dès lors que cette tension verticale est conservée lors de la dépose sur la charge.The next phase of hooding is carried out by a vertical displacement of the frame over the load, so as to cause the unfolding progressive of the cover on the load. After removing the cover, the tightening of the stretch film material occurs naturally by elasticity, which ensures the stable maintenance of the load. The relaxation of the material and the friction of the film on the fingers create in addition a vertical tension of the film on the load which contributes also to enhance stability. This vertical tension is generated without any particular vertical stretching device, given that a transverse stretch from 50% to 100% reduces the sheath height, and transmits to the load cohesive forces sufficient to ensure stability, since this vertical tension is maintained during deposit it on the load.
L'angle d'inclinaison A des doigts 12 avec la direction verticale permet
de faciliter l'accumulation des plis lors du plissage par les galets 14
motorisés. Pour une inclinaison prédéterminée, le jeu entre la housse
10 et les doigts 12 augmente progressivement à mesure que l'on
s'approche de la partie basse, avec la conséquence d'une possibilité de
désorganisation des plis, lesquels ne sont plus correctement guidés
lors de leur glissement vers la base des doigts.The angle of inclination A of the
Un angle d'inclinaison A plus faible des doigts 12 aurait comme
principal inconvénient de gêner l'effet d'accumulation des plis, étant
donné que le glissement du film vers le bas ne pourrait plus
s'effectuer naturellement. Les galets 14 motorisés, en plus de leur
fonction de plissage, devront en plus exercer une deuxième fonction
de poussée vers le bas, ce qui engendre des frottements sur les plis
supérieurs, avec des risques de formation de points ou de lignes
verticales de fragilité de la gaine avant la phase d'étirage transversal.A lower angle of inclination A of the
Dans le document EP 633186, le film étirable est provisoirement serré latéralement dans la zone inférieure de la charge ou de la palette, contre une butée qui se trouve placée au-dessus des doigts.In document EP 633186, the stretch film is temporarily laterally clamped in the lower area of the load or pallet, against a stop which is placed above the fingers.
L'objet de l'invention consiste à élaborer un procédé d'étirage d'une housse d'emballage permettant d'obtenir une accumulation libre et régulière sans désorganisation des plis lors de la phase de plissage avant l'étirage transversal, et d'éviter tout risque de déchirure du film pendant l'étape suivante de houssage.The object of the invention is to develop a method of drawing a packaging cover allowing free accumulation and regular without disorganization of the folds during the pleating phase before transverse stretching, and to avoid any risk of tearing the film during the next covering step.
Un développement de l'invention consiste à créer un toron plissé
régulier et précis pendant l'étape de houssage, et à le déposer sur la
charge à une hauteur quelconque, ou sur la palette.
Un autre développement de l'invention se rapporte à un procédé
d'étirage permettant d'obtenir une tension contrôlée du film lors du
houssage.A development of the invention consists in creating a regular and precise pleated strand during the covering step, and in depositing it on the load at any height, or on the pallet.
Another development of the invention relates to a stretching process making it possible to obtain a controlled tension of the film during the hooding.
Le procédé d'étirage selon l'invention est caractérisé en ce que l'inclinaison des doigts est comprise entre 0 et 25° par rapport à la direction verticale, et on limite la réduction du périmètre de plissage autour des doigts pour obtenir avant la phase d'étirage transversal horizontal, une accumulation sans gêne et une répartition régulière des plis dans la partie inférieure desdits doigts. Le frottement de la gaine qui descend le long des doigts inclinés s'effectue sur les deux arêtes des doigts. Tout angle ou partie en saillie sur ces arêtes risquerait de désorganiser les plis.The drawing process according to the invention is characterized in that the inclination of the fingers is between 0 and 25 ° relative to the vertical direction, and we limit the reduction of the pleating perimeter around the fingers to obtain before the transverse stretching phase horizontal, an accumulation without discomfort and a regular distribution folds in the lower part of said fingers. The friction of the sheath which descends along the inclined fingers is effected on both finger edges. Any angle or protruding part on these edges may disrupt the folds.
Une désorganisation des plis après l'étape d'étirage risque en effet de perturber le déplissage lors du houssage, créant des pincements des plis entre eux susceptibles de provoquer une déchirure de la gaine.Disorganization of the folds after the stretching step may indeed disturb the unfolding during hooding, creating pinching of the folds between them which may cause the sheath to tear.
L'inclinaison des doigts facilite l'accumulation des plis, et le fait de
limiter le périmètre de plissage dans la partie basse où le jeu est le
plus important, empêche la désorganisation des plis. La présence de
l'élément de freinage au milieu des deux arêtes limite la réduction du
périmètre au bas des doigts, sans gêner la descente de la gaine le long
des doigts. Toute formation de plis pincés successifs est ainsi exclue
lors de l'étirage transversal, ce qui permet d'éviter d'une manière
fiable les déchirures lors de l'étape suivante de houssage.
Selon un développement de l'invention, un toron plissé régulier peut
être créé dans le film pendant la phase de houssage, en interrompt le
mouvement de descente de la housse à un niveau prédéterminé, et en
faisant tourner les galets dans un deuxième sens de rotation opposé
au premier. Par un double déplacement des doigts, le film toronné peut
être déposé avec précision à tout niveau de hauteur de la charge
palettisée. On peut ainsi créer soit une mini housse à tout niveau de la
charge ou de la palette, soit l'étanchéité et le maintien de la partie
supérieure de la charge, soit la dépose du toron sur le haut de la
palette support autorisant un dégagement précis de l'entrée d'une
fourche de palettiseur automatique.The inclination of the fingers facilitates the accumulation of folds, and the fact of limiting the perimeter of pleating in the lower part where the play is greatest, prevents the disorganization of the folds. The presence of the braking element in the middle of the two edges limits the reduction of the perimeter at the bottom of the fingers, without hampering the descent of the sheath along the fingers. Any formation of successive pinched folds is thus excluded during the transverse stretching, which makes it possible to reliably avoid tearing during the following stage of hooding.
According to a development of the invention, a regular pleated strand can be created in the film during the covering phase, by interrupting the lowering movement of the cover to a predetermined level, and by rotating the rollers in a second direction of rotation. opposite the first. By a double movement of the fingers, the stranded film can be precisely deposited at any level of height of the palletized load. It is thus possible to create either a mini cover at any level of the load or the pallet, or the sealing and the maintenance of the upper part of the load, or the removal of the strand on the top of the support pallet allowing precise clearance from the entrance to an automatic palletizer fork.
Selon un autre développement de l'invention, pendant la formation du
toron, on bloque la portion inférieure de la partie de housse déposée
contre le sabot d'étirage, lequel se trouve à la partie supérieure des
doigts. Il en résulte une tension mécanique contrôlée dans le film, avec
une possibilité d'étirage vertical de la housse dont la valeur est
comprise entre 5% à 50% d'allongement vertical.
La formation du toron selon ces développements, n'est possible que si
préalablement, l'organisation des plis est parfaite.According to another development of the invention, during the formation of the strand, the lower portion of the cover part deposited against the drawing shoe is blocked, which is located at the upper part of the fingers. This results in controlled mechanical tension in the film, with the possibility of vertical stretching of the cover, the value of which is between 5% to 50% of vertical elongation.
The formation of the strand according to these developments is only possible if beforehand, the organization of the folds is perfect.
L'invention porte également sur un dispositif d'emballage d'une charge palettisée au moyen d'une housse constituée d'un film plastique étirable, et comprenant un cadre de manoeuvre équipé de doigts de plissage et d'étirage, chaque doigt ayant un sabot d'étirage, et étant associé à un galet motorisé entraíné en rotation par un motoréducteur, des moyens pour faire basculer chaque galet motorisé entre une position écartée de repos, et une position de travail en contact avec le doigt, et des moyens d'actionnement du cadre pour effectuer le houssage de la charge. La partie inférieure inclinée de chaque doigt est dotée de moyens évitant une réduction trop importante du périmètre de plissage autour des doigts, et comprenant un élément de freinage agencé dans la zone basse d'accumulation des plis où le jeu entre la housse plissée avant la phase d'étirage transversal est le plus important. The invention also relates to a device for packaging a load. palletized using a cover made of plastic film stretchable, and comprising an operating frame equipped with pleating and stretching, each finger having a stretching shoe, and being associated with a motorized roller driven in rotation by a gear motor, means for tilting each motorized roller between a spread position of rest, and a working position in contact with the finger, and means for actuating the frame to cover the load. The inclined lower part of each finger is endowed with means avoiding too much reduction large pleating perimeter around the fingers, and comprising a braking element arranged in the low zone of accumulation of folds where the play between the pleated cover before the stretching phase transverse is the most important.
Selon un mode de réalisation préférentiel, l'élément de freinage est rectiligne, et s'étend verticalement en faisant saillie de la zone centrale de la partie inférieure inclinée du doigt. L'élément de freinage présente une largeur inférieure à celle du doigt, et est solidarisé par sa base au support mobile du doigt. L'extrémité opposée de l'élément de freinage est agencée sous un rouleau sur lequel vient s'appliquer le galet motorisé lors du plissage.According to a preferred embodiment, the braking element is straight, and extends vertically projecting from the area center of the inclined lower part of the finger. The braking element has a width less than that of the finger, and is secured by its base to the movable support of the finger. The opposite end of the element braking system is arranged under a roller on which the motorized roller during pleating.
Selon une autre caractéristique, un élément de serrage est monté sur le support de chaque doigt en s'étendant sensiblement au niveau du sabot d'étirage au-dessus du galet motorisé correspondant. L'élément de serrage est associé à un actionneur pour être déplacé entre une position de blocage en appui contre le sabot, et une position de déblocage écartée dudit sabot. L'élément de serrage peut être formé par une butée à embout souple destiné à coincer une partie de la housse contre ledit sabot en position de blocage.According to another characteristic, a clamping element is mounted on the support of each finger extending substantially at the level of the drawing shoe above the corresponding motorized roller. The element clamp is associated with an actuator to be moved between a blocking position in abutment against the shoe, and a position of unlocking discarded from said shoe. The clamping element can be formed by a flexible end stop intended to wedge part of the cover against said shoe in the locked position.
D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode de réalisation de l'invention donné à titre d'exemple non limitatif, et représenté aux dessins annexés, dans lesquels:
- la figure 1 est une vue schématique en élévation d'un dispositif de plissage d'une housse étirable équipant une machine d'emballage de l'art antérieur ;
- la figure 2 représente une vue en plan de la figure 1 ;
- la figure 3 est une vue identique de la figure 1 montrant la phase d'étirage transversal de la housse plissée ;
- la figure 4 est une vue en perspective d'un doigt de plissage selon l'invention;
- la figure 5 montre une vue en coupe du doigt selon la ligne 5-5 de la figure 4 ;
- la figure 6 est une vue du doigt équipé d'un dispositif de serrage pendant la formation d'un toron plissé ;
- les figures 7A-7C illustrent schématiquement le déplacement d'un doigt pendant la dépose du toron plissé sur la charge;
- les figures 8 à 11 représentent les différentes étapes du procédé de houssage, respectivement pendant la course normale de descente du cadre, lors de la formation d'un toron plissé, lors de l'écartement transversal des doigts, et lors de la dépose du toron sur la charge ;
- la figure 12 montre une vue partielle en perspective du houssage avec dépose du toron plissé sur le haut de la palette, laissant libre l'entrée des fourches d'un palettiseur ;
- la figure 13 est une variante de la figure 10, sans dispositif de serrage spécial.
- Figure 1 is a schematic elevational view of a pleating device of a stretch cover fitted to a packaging machine of the prior art;
- Figure 2 shows a plan view of Figure 1;
- Figure 3 is an identical view to Figure 1 showing the transverse stretching phase of the pleated cover;
- Figure 4 is a perspective view of a pleating finger according to the invention;
- Figure 5 shows a sectional view of the finger along line 5-5 of Figure 4;
- Figure 6 is a view of the finger equipped with a clamping device during the formation of a pleated strand;
- FIGS. 7A-7C schematically illustrate the movement of a finger during the removal of the pleated strand on the load;
- FIGS. 8 to 11 show the different stages of the covering process, respectively during the normal downward travel of the frame, during the formation of a pleated strand, during the transverse spacing of the fingers, and during the removal of the strand on the load;
- Figure 12 shows a partial perspective view of the covering with removal of the pleated strand on the top of the pallet, leaving free the entry of the forks of a palletizer;
- Figure 13 is a variant of Figure 10, without special clamping device.
En référence aux figures 4 et 5, la partie inférieure 12A inclinée de
chaque doigt 12 est dotée d'un élément de freinage 26 rectiligne,
s'étendant verticalement en faisant saillie de la zone centrale, et
présentant une largeur L1 inférieure à celle L2 du doigt 12. La base de
l'élément de freinage 26 est solidarisée au support 28 mobile du doigt
12, et son extrémité opposée se trouve en dessous du rouleau 13
inférieur sans le toucher. La valeur de l'angle A peut être comprise
entre 0 et 25°.Referring to Figures 4 and 5, the
L'élément de freinage 26 constitue un moyen de compensation agencé
dans la zone basse d'accumulation où le jeu entre la housse 10 plissée
et la partie inférieure 12A inclinée du doigt 12 est le plus important.
La présence des éléments de freinage 26 sur les quatre doigts 1 2
inclinés limite la réduction de périmètre autour des doigts 12, en
permettant à la fois une accumulation sans gêne des plis dans la
partie inférieure 12A, et une répartition uniforme et régulière des plis
le long des arêtes verticales A1 et A2 voisines. L'étirage transversal
de la housse 10 peut alors être opéré comme sur la figure 3 (flèches
F3 et F4), par écartement dans un plan horizontal des supports 28
aux quatre coins du cadre, et en évitant toute formation de plis
irréguliers ou pincés risquant des déchirures lors de la phase de
houssage.The
Sur la figure 6, un élément de serrage 30 est monté sur le support 28
de chaque doigt 12, en s'étendant sensiblement au niveau du sabot
d'étirage 22 au-dessus du galet 14 motorisé. L'élément de serrage 30
est accouplé à un actionneur 32 de manière à être déplacé entre une
position de blocage et une position de déblocage. L'élément de serrage
30 est formé à titre d'exemple par une butée à embout souple en
caoutchouc, venant en appui en position de blocage contre le sabot
d'étirage 22 pour pincer la partie inférieure de la housse 10 aux
quatre coins.In FIG. 6, a clamping
L'actionneur 32 peut être constitué par un vérin de commande
pneumatique, hydraulique ou électrique. Les motoréducteurs 24 des
quatre galets 14 rotatifs sont pilotés par des variateurs de vitesse
réglables en fonction de divers paramètres, et dont le sens de
rotation peut être inversé pendant les phases de plissage et de
houssage.The
Il est ainsi possible de réaliser un toron 34 plissé terminal en bout de
housse 10 pendant ou à la fin de la phase de houssage. Il suffit
d'interrompre le mouvement de descente du cadre d'étirage à un
endroit prédéterminé, et de faire basculer les galets 14 en mode de
plissage en appui contre les rouleaux 13, mais en inversant le sens de
rotation (flèche F5, figure 6) par rapport à celui (flèche F2, figure 1 )
utilisé pour le plissage avant l'étirage transversal. Les plis du toron 34
s'accumulent entre le rouleau supérieur 13 et le sabot d'étirage 22
lors de la rotation du galet 14 selon le sens F5.It is thus possible to produce a terminal
Selon les figures 7A-7C, le film toronné de la housse 10 peut ensuite
être déposé sur la charge CH palettisée suite à un double déplacement
des quatre doigts 12 selon les flèches F6 et F7. A partir de la figure
7A correspondant à la formation du toron 34 selon la figure 6, on
écarte les doigts 12 selon un premier mouvement de translation
indiqué par la flèche F6 (figure 7B), suivi d'un deuxième mouvement
orthogonal de dégagement vertical (flèche F7, figure 7C) pour
l'application du toron 34 sur la charge CH.According to FIGS. 7A-7C, the stranded film of the
Il est ainsi possible d'obtenir une dépose précise du toron 34 à tout
niveau de hauteur de la charge palettisée. Il suffit d'interrompre la
course de descente du cadre à une hauteur prédéterminée, et
d'enclencher la phase de plissage pour la formation du toron 34 au
moyen des galets 14 tournant selon le sens de la flèche F5. Ce
procédé permet de créer soit une mini housse à tout niveau de la
charge ou de la palette, soit l'étanchéité et le maintien de la partie
supérieure de la charge CH, soit la dépose du toron 34 sur le haut de
la palette autorisant un dégagement précis de l'entrée d'une fourche
de palettiseur automatique, tel que représenté à la figure 12.It is thus possible to obtain a precise removal of the
La présence des éléments de serrage 30 permet en plus de fiabiliser
la fonction précédente, grâce au coincement de la housse 10 en
position de blocage des actionneurs 32. Un effet de tension mécanique
est ainsi engendré dans la partie verticale supérieure de la gaine
déposée en maintenant le film tendu.The presence of the clamping
Les différentes étapes de mise en oeuvre du procédé sont illustrées sur les figures 8-11 :The different stages of implementation of the method are illustrated in Figures 8-11:
Sur la figure 8 est représentée l'étape de houssage de la charge CH,
qui suit la phase d'étirage transversal de la figure 3. Durant la course
de descente du cadre de support des doigts 12, l'élément de serrage
30 se trouve dans une position écartée, ainsi que le galet 14 de
plissage. Le film de la housse 10 glisse librement le long du sabot 22
cintré, et le déplissage des plis s'effectue progressivement et sans
gêne durant la course de descente indiquée par la flèche F8.FIG. 8 shows the step of covering the load CH,
following the transverse stretching phase of figure 3. During the race
lowering of the
Sur la figure 9, on stoppe le mouvement de descente du cadre pour la
formation d'un toron. L'élément de serrage 30 de chaque doigt 12 est
actionné en position de blocage en coinçant le film contre le sabot 22
dans les quatre angles. Après basculement du galet 14 motorisé
contre les rouleaux 13, on forme le toron suite à la rotation du galet
dans le sens de la flèche F5.In FIG. 9, the downward movement of the frame is stopped for the
formation of a strand. The clamping
Sur la figure 10, le support 28 des doigts 12 est ensuite écarté
horizontalement dans le sens de la flèche F9. L'élément de serrage 30
et le galet 14 motorisé de chaque doigt 12 restent en contact avec la
housse pendant ce mouvement d'écartement, de manière à maintenir
un positionnement correct du toron entre le sabot 22 et le rouleau
supérieur 13, et à conserver la tension du film dans la partie de la
housse déjà déposée.In FIG. 10, the
Sur la figure 11, on rapproche horizontalement les doigts 12 pour la
dépose du toron 34 à un endroit précis de la charge CH ou de la
palette 36, suivi d'un mouvement de dégagement du support 28 des
doigts 12 vers le bas selon la flèche F7. L'élément de serrage 30 est
alors actionné vers la position de déblocage pour libérer le toron 34
lors de sa dépose. La partie verticale de la housse 10 reste tendue
lors de la formation du toron 34 plissé, et peut même être étirée
d'une valeur pouvant atteindre 5% à 50% d'allongement vertical. In FIG. 11, the
En effet, lors de la manutention des charges, la tension verticale du
tronçon de gaine qui lie la première couche de produits avec la palette
36, est primordiale pour assurer une bonne tenue de la charge. En fin
d'étape de houssage, l'étirage vertical associé au toron déposé contre
la palette, garantit la stabilité de la chargeIn fact, when handling loads, the vertical tension of the
section of sheath that links the first layer of products with the
Sur la figure 12, on note que le toron est placé juste au-dessus du
dégagement de la palette 36 pour autoriser l'entrée de la fourche d'un
palettiseur.In Figure 12, we note that the strand is placed just above the
release of the
En référence à la figure 13, l'élément de serrage 30 est supprimé, et
l'extrémité du sabot d'étirage 22 est suffisamment en saillie pour
retenir le toron à la partie supérieure du doigt. Ce toron est ensuite
déposé sur la charge selon le même cycle décrit précédemment.With reference to FIG. 13, the clamping
L'invention s'applique également pour une gaine à plat, ouverte par effet de dépression, et prise en quatre points par le cadre de houssage.The invention also applies to a flat sheath, opened by depression effect, and taken at four points by the frame of hooding.
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0214088A FR2846943B1 (en) | 2002-11-12 | 2002-11-12 | METHOD AND DEVICE FOR PLACING A PLASTIC FILM PACKAGING COVER ON A PALLETIZED LOAD |
FR0214088 | 2002-11-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1419966A1 true EP1419966A1 (en) | 2004-05-19 |
EP1419966B1 EP1419966B1 (en) | 2007-01-10 |
Family
ID=32116523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20030354082 Expired - Lifetime EP1419966B1 (en) | 2002-11-12 | 2003-11-07 | Method and apparatus for applying a packaging hood of stretch foil on a palettized load |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1419966B1 (en) |
DE (1) | DE60311050T2 (en) |
DK (1) | DK1419966T3 (en) |
ES (1) | ES2279936T3 (en) |
FR (1) | FR2846943B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8938934B2 (en) | 2010-08-26 | 2015-01-27 | Mollers North America, Inc. | Corner post application system |
EP2902328A4 (en) * | 2012-09-28 | 2015-12-23 | Innova Maquinaria Cerámica S L | Machine for wrapping palletised loads |
WO2016070883A1 (en) * | 2014-11-04 | 2016-05-12 | Frank Bruhn Aps | Horizontally arranged wrap packaging system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010037770B4 (en) * | 2010-09-24 | 2012-06-14 | Illinois Tool Works Inc. | Method and device for at least partially wrapping a stack of pieces with a hose section |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0344815A1 (en) | 1988-06-03 | 1989-12-06 | Bernhard Beumer Maschinenfabrik KG | Method and device for wrapping products, in particular stacks of products, in a stretchable film cover |
DE4103384A1 (en) * | 1990-02-06 | 1991-08-08 | Hannen Reiner Develog | Machine for wrapping goods in elastic film - has stretching frame which maintains tension of film as goods are wrapped |
DE4235409C1 (en) * | 1992-10-21 | 1994-01-13 | Moellers Maschf Gmbh | Four-finger stack-stretch-wrapping machine - moves fingers in pairs horizontally and successively inwards and outwards and for different distances |
EP0633186A1 (en) | 1990-06-15 | 1995-01-11 | Bernhard Beumer Maschinenfabrik KG | Method and apparatus for wrapping products |
US6032439A (en) * | 1997-07-26 | 2000-03-07 | Maschinenfabrik Mollers Gmbh U. Co. | Apparatus and method of covering a stack of articles |
EP1060988A1 (en) | 1999-06-10 | 2000-12-20 | Thimon S.A. | Method and device for making and applying a flexible heat-shrinkable hood on palletized load |
US6470654B1 (en) * | 1999-04-16 | 2002-10-29 | Kl-Lachenmeier A/S | Method and apparatus for packaging objects |
-
2002
- 2002-11-12 FR FR0214088A patent/FR2846943B1/en not_active Expired - Fee Related
-
2003
- 2003-11-07 DE DE2003611050 patent/DE60311050T2/en not_active Expired - Lifetime
- 2003-11-07 ES ES03354082T patent/ES2279936T3/en not_active Expired - Lifetime
- 2003-11-07 DK DK03354082T patent/DK1419966T3/en active
- 2003-11-07 EP EP20030354082 patent/EP1419966B1/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0344815A1 (en) | 1988-06-03 | 1989-12-06 | Bernhard Beumer Maschinenfabrik KG | Method and device for wrapping products, in particular stacks of products, in a stretchable film cover |
DE4103384A1 (en) * | 1990-02-06 | 1991-08-08 | Hannen Reiner Develog | Machine for wrapping goods in elastic film - has stretching frame which maintains tension of film as goods are wrapped |
EP0633186A1 (en) | 1990-06-15 | 1995-01-11 | Bernhard Beumer Maschinenfabrik KG | Method and apparatus for wrapping products |
DE4235409C1 (en) * | 1992-10-21 | 1994-01-13 | Moellers Maschf Gmbh | Four-finger stack-stretch-wrapping machine - moves fingers in pairs horizontally and successively inwards and outwards and for different distances |
US6032439A (en) * | 1997-07-26 | 2000-03-07 | Maschinenfabrik Mollers Gmbh U. Co. | Apparatus and method of covering a stack of articles |
US6470654B1 (en) * | 1999-04-16 | 2002-10-29 | Kl-Lachenmeier A/S | Method and apparatus for packaging objects |
EP1060988A1 (en) | 1999-06-10 | 2000-12-20 | Thimon S.A. | Method and device for making and applying a flexible heat-shrinkable hood on palletized load |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8938934B2 (en) | 2010-08-26 | 2015-01-27 | Mollers North America, Inc. | Corner post application system |
US9802723B2 (en) | 2010-08-26 | 2017-10-31 | Mollers North America, Inc. | Corner post application system |
EP2902328A4 (en) * | 2012-09-28 | 2015-12-23 | Innova Maquinaria Cerámica S L | Machine for wrapping palletised loads |
WO2016070883A1 (en) * | 2014-11-04 | 2016-05-12 | Frank Bruhn Aps | Horizontally arranged wrap packaging system |
US10800559B2 (en) | 2014-11-04 | 2020-10-13 | Frank Bruhn Aps | Horizontally arranged wrap packaging system |
Also Published As
Publication number | Publication date |
---|---|
EP1419966B1 (en) | 2007-01-10 |
DK1419966T3 (en) | 2007-05-14 |
FR2846943B1 (en) | 2005-02-18 |
DE60311050T2 (en) | 2007-08-16 |
ES2279936T3 (en) | 2007-09-01 |
FR2846943A1 (en) | 2004-05-14 |
DE60311050D1 (en) | 2007-02-22 |
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